VSP技术在杜229块西南部的应用研究  

Application of VSP Technology in the Southwest of Du 229 Block

作　　者：任宝铭[1] 

机构地区：[1]中国石油辽河油田公司,辽宁盘锦124010

出　　处：《中外能源》2015年第10期56-59,共4页Sino-Global Energy

摘　　要：辽河油田杜229块油藏已进入开发中后期,区块主体部位井网比较密集,没有部署挖潜潜力,产能部署方向转为区块边部断层复杂区域。边部三维地震资料受其分辨率、信噪比的限制,在落实小断层、寻找微构造、追踪薄储层上难度较大。为此引入了VSP技术,并在杜229块西南部首先进行了应用。利用VSP测井高分辨率特征,通过零偏VSP资料提取的时深关系,准确进行层位标定;通过非零偏VSP资料识别小断层具体位置及构造情况。最后,根据VSP资料的解释结果 ,结合该区域三维地震资料和岩性资料以及储层及油层发育分布情况,对该地区重新进行地震解释,结合试采井状况,在潜力区域规划部署5口井,充分挖掘油藏潜力。该技术的应用为精细地质体研究、落实小断层位置、新井部署、改善区块开发效果提供了技术保障。After years of development,the oil reservoirs in Du 229 block of Liaohe oilfield have entered the mid-later development period.The main part of the block has a dense well pattern and it is difficult to drill new wells.Complex fault area at the edge of the block became the future capacity deployment one.Three-di-mension seismic data of the edge of the block is hard to verify the small faults,look for micro-structure and trace the thin reservoirs for its low resolution and signal-to-noise ratio.So VSP technology was introduced and firstly applied in the southwest of Du 229 block.VSP logging has high-resolution characteristics.So hori-zon was calibrated accurately through time-depth relationship extracted by zero partial VSP data,and location and tectonic conditions of the small faults were recognized by nonzero partial VSP data.Finally,the seismic data in this block was interpreted again according to the interpretation result of the VSP data together with the 3D seismic data,lithologic data and reservoir distribution and development conditions of this area.Five wells were deployed in the potential area to tap the potential of the reservoir combined with the conditions of production test wells.The application of the technology provides technical guarantee for the research of fine geologic body,the location of small faults,the deployment of new wells,and the improvement of development effect in this block.

关 键 词：辽河杜229块 VSP技术 层位标定 地震解释 

分 类 号：P631.4[天文地球—地质矿产勘探]